Head support for sleeping while sitting



FIG. 1 is a front view of the head support for sleeping while sitting showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a front view of the head support wherein the insert of the head support is in an extended condition;

FIG. 8 is a right side view thereof;

FIG. 9 is a left side view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a back view thereof;

FIG. 13 is a perspective view thereof; and,

FIG. 14 is a perspective view of the head support without the insert being extended. 

CLAIM I claim the ornamental design for a head support for sleeping while sitting, as shown and described. 